| 王智廷,郑翔,叶虹,闻彩云,黄伟剑,曹国全.冠状动脉介入诊疗过程中不同悬吊防护屏位置对操作者所受剂量的影响[J].中华放射医学与防护杂志,2017,37(12):946-949 |
| 冠状动脉介入诊疗过程中不同悬吊防护屏位置对操作者所受剂量的影响 |
| The influence of different ceiling-mounted shield positions on operators' radiation dose in percutaneous coronary intervention |
| 投稿时间：2017-07-10 |
| DOI：10.3760/cma.j.issn.0254-5098.2017.12.013 |
| 中文关键词: 冠状动脉 介入诊疗 体表入射剂量率 悬吊防护屏 辐射防护 |
| 英文关键词:Percutaneous coronary Intervention Entrance surface dose rate Ceiling-mounted shield Radiation protection |
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| 中文摘要: |
| 目的 探讨冠状动脉介入诊疗过程中悬吊防护屏位置的变化对第1及第2术者位置辐射剂量的影响。方法 采用冠状动脉造影过程中常用的足位、右足位、头位、左足位、左侧位、左头位、右侧位7个体位，经桡动脉途径对标准仿真人模体进行曝光采集。测量高度取125及155 cm，在不同采集体位时，用剂量仪测量不同悬吊防护屏位置时第1及第2术者位置的体表入射剂量率，并比较其是否存在差异。结果 对于第1术者只在左足位测得有效剂量率值，且悬吊防护屏靠近患者时的体表入射剂量率高于靠近术者时（t125=46.9，t155=4.1，P<0.05）；第2术者在足位、右足位、左侧位、右侧位悬吊防护屏靠近术者时的体表入射剂量率高于靠近患者时（t125=11.9、24.4、11.2、2.7，t155=16.1、2.8、14.4、28.8，P<0.05）；在头位、左足位、左头位时吊防护屏靠近术者时的体表入射剂量率低于靠近患者时（t125=-4.3、-2.4、-80.4，t155=-10.2、-6.7、-152.6，P<0.05）。结论 冠状动脉介入诊疗过程中悬吊防护屏位置的变化能引起操作者所受剂量的改变，但是不同体位时悬吊防护屏位置变化所引起的操作者所受剂量的变化趋势也不同，因此在实际操作过程中应针对不同投照体位合理应用悬吊防护屏，以有效减少操作者所受剂量。 |
| 英文摘要: |
| Objective To discuss the influence of the change in ceiling-mounted shield positions on the radiation doses to the first and second operators during percutaneous coronary intervention.Methods In this study, the entrance surface dose (ESD) rates were measured for the first and second operators at 125 cm and 155 cm height on different ceiling-mounted shield positions separately through transradial approach. Measurements were repeated 20 times for each position and T test was used for statistical analysis of dose rate arithmetic mean values. Results For the first operator, the effective dose values were obtained only on left foot position. The ESD rate values at ceiling-mounted shield position close to patient were higher than that close to operators (t125=46.9, t155=4.1, P<0.05). For the second operator, the ESD rate values on his foot position, right foot position, left anterior oblique position and right anterior oblique position at ceiling-mounted shield position close to the operator, were higher than that close to the patient separately (t125=11.9, 24.4, 11.2, 2.7, t155=16.1, 2.8, 14.4, 28.8, P<0.05). The ESD rate values on head position, left foot position, left head position at ceiling-mounted shield position close to the operator, were lower than that close to the patient (t125=-4.3, -2.4, -80.4, t155=-10.2, -6.7, -152.6, P<0.05). Conclusions The change in the ceiling-mounted shield positions gave rise to change in radiation dose to the operators. The changes in radiation doses caused by the changes in ceiling-mounted shield positions are different in various angiographic positions. Ceiling-mounted shield should be used in a reasonable way in agreement with different positions in percutaneous coronary intervention so as to effectively reduce operators radiation dose. |
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